What does the cryptic crossword clue "Dottier manoeuvres in U.S. city (7)" mean?

The definition is "U.S. city". The wordplay uses an anagram. anagram of DOTTIER = DETROIT; definition: "U.S. city" The answer is DETROIT.

Dottier manoeuvres in U.S. city (7)

Daily Mail Cryptic #17309 | 27 Across | 2024-03-07 flower